Finding the Fourth Proportional to 3,521.92, 4,859.91 and 2,105.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,521.92 : 4,859.91 = 2,105.33 : x
2. Step 2: Convert to fraction form
   3,521.92/4,859.91 = 2,105.33/x
3. Step 3: Cross multiply
   3,521.92x = 4,859.91 × 2,105.33
4. Step 4: Simplify right side
   3,521.92x = 10,231,690.02
5. Step 5: Solve for x
   x = 10,231,690.02/3,521.92
6. Step 6: Final answer
   x = 2,905.15